Good points! Of course it's needed an accurate inspection. I'm an airspace engineer but I have to be honest, I worked for over 20 years with heavy size engines, so probably not so more skilled with aircraft structures.. But I have a good friend, pilot and engineer too, that is a good resource to evaluate a plane, since he has projected and manufactured planes in the past. About the price we are talking about 35k € with overhauled engine.